[Event "US Open"] [Site "Columbus, OH"] [Date "1977.08.16"] [Round "10"] [White "Wintering, Mark"] [Black "Wall, Bill"] [Result "1-0"] [ECO "D98"] [WhiteElo "1436"] [BlackElo "1700"] [Annotator "Wall,Bill"] [PlyCount "55"] [EventDate "1977.??.??"] 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 {Grunfeld Indian, Russian System } dxc4 6. Qxc4 O-O 7. e4 Bg4 {Smyslov variation; 7...Nc6} 8. Be3 {8.Be2} Nfd7 { 8...Bxf3} 9. Bd3 $146 {A new move? 9.Be2; 9.Rd1; 9.Qb3; 9.Nd2; 9.O-O-O; 9.h3} Nb6 10. Qb3 {Better is 10.Qc5, then 10...Bxf3 11.gxf3 N8d7} Nc6 {10...Bxf3 11. gxf3 Bxd4 wins a pawn} 11. d5 Rb8 {11...Bxf3 12.gxf3 Nd4 13.Bxd4 Bxd4} 12. h3 { 12.Be2 Bxf3 13.Bxf3 Na5; 12.dxc6 Qxd3 13.cxb7 Rxb7 14.Rd1 Qa6} Bxf3 13. gxf3 Na5 {Better is 13...e6 14.dxc6 Qxd3 15.cxb7 Rxb7; Or 13...Ne5} 14. Qb5 Nxd5 $2 (14... Nc6 15. dxc6 a6 16. Qb3 Qxd3 17. Rd1 Qc4) 15. Nxd5 (15. Qxd5 Bxc3+ 16. bxc3 Qxd5 17. exd5 Rfd8) 15... c6 16. Nxe7+ Qxe7 $2 (16... Kh8 17. Qg5 Qxd3 18. Rd1 Qb5) 17. Qxa5 Bxb2 18. Rd1 {18.Rb1} Qf6 {18...b6} 19. Ke2 {19.Be2?? Bc3+ wins the Queen} Qe6 $2 (19... Bc3) 20. Qd2 (20. Qb4 Qf6 21. Bxa7) 20... Bf6 { 20...Bg7; 20...Qxa2? 21.Rb1} 21. h4 {21.f4 or 21.Qc2} h5 {21...b6 and 22...c5 or 22...Rbd8} 22. Qc2 {22.Qb4} Rfc8 {22...b5} 23. Bc4 Qe7 24. Bf4 {24.e5 Bxe5 25.Qxg6+ Kf8 26.Qxh5} Ra8 25. Bd6 Qe8 26. Rhg1 {26.e5 and if 26...Bg7 27.Qxg6 Kh8 28.Qxh5+ Kg8 29.Rhg1, leading to mate; Black would have to play 26...Kg7} Kh7 {Loses. Better is 26...Kg7 27.e5 Bxh4} 27. Qb3 {threatening 28.Bxf7 and 29. Bxg6+} Kg7 28. Qxb7 {28...Bxh4 29. Bxf7 Qxf7 30.Rxg6+ Kxg6 31.Rg1+ Bg5 32. Rxg5+ Kxg5 33.Qxf7 Rg8 34.Bf4+ Kh4 35. Qf6+ Kh3 36.Qa1, threatening 37.Qh1 mate } 1-0

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